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 A186023 Eigentriangle of triangle A085478. 0
 1, 1, 1, 2, 1, 1, 6, 4, 1, 1, 23, 15, 6, 1, 1, 106, 68, 28, 8, 1, 1, 567, 365, 145, 45, 10, 1, 1, 3434, 2215, 877, 262, 66, 12, 1, 1, 23137, 14917, 5936, 1750, 427, 91, 14, 1, 1, 171174, 110324, 43936, 13020, 3108, 648, 120, 16, 1, 1, 1376525, 887232, 353067, 104904, 25125, 5091, 933, 153, 18, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS First column is A125273. Inverse of A186024. Rows sums are A125273(n)*(2-0^n). LINKS P. Barry, Invariant number triangles, eigentriangles and Somos-4 sequences, arXiv preprint arXiv:1107.5490, 2011. EXAMPLE Triangle begins 1, 1, 1, 2, 1, 1, 6, 4, 1, 1, 23, 15, 6, 1, 1, 106, 68, 28, 8, 1, 1, 567, 365, 145, 45, 10, 1, 1, 3434, 2215, 877, 262, 66, 12, 1, 1, 23137, 14917, 5936, 1750, 427, 91, 14, 1, 1, 171174, 110324, 43936, 13020, 3108, 648, 120, 16, 1, 1 CROSSREFS Cf. A186020. Sequence in context: A340128 A139622 A257895 * A103880 A135899 A327816 Adjacent sequences:  A186020 A186021 A186022 * A186024 A186025 A186026 KEYWORD nonn,tabl AUTHOR Paul Barry, Feb 10 2011 STATUS approved

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Last modified December 7 19:47 EST 2021. Contains 349585 sequences. (Running on oeis4.)